Discovery of the Late Devonian Famennian stromatolites in the eastern Anti-Atlas, Morocco, North Africa

ZENG Xiong-Wei; HE Yao-Yan; WANG Cheng-Gang; WU Fa-Fu; WEI Kai; WANG Zhi-Hong

doi:10.3969/j.issn.2097-0013.2024.01.003

2024 Vol. 40, No. 1

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ZENG Xiong-Wei, HE Yao-Yan, WANG Cheng-Gang, WU Fa-Fu, WEI Kai, WANG Zhi-Hong. 2024. Discovery of the Late Devonian Famennian stromatolites in the eastern Anti-Atlas, Morocco, North Africa. South China Geology, 40(1): 56-62. doi: 10.3969/j.issn.2097-0013.2024.01.003

Citation:

ZENG Xiong-Wei, HE Yao-Yan, WANG Cheng-Gang, WU Fa-Fu, WEI Kai, WANG Zhi-Hong. 2024. Discovery of the Late Devonian Famennian stromatolites in the eastern Anti-Atlas, Morocco, North Africa. South China Geology, 40(1): 56-62. doi: 10.3969/j.issn.2097-0013.2024.01.003

Discovery of the Late Devonian Famennian stromatolites in the eastern Anti-Atlas, Morocco, North Africa

1. Hubei Key Laboratory of Paleontology and Geological Environment Evolution,Wuhan 430205, Hubei, China
2.Wuhan Center, China Geological Survey (Geosciences Innovation Center of Central South China),Wuhan 430205, Hubei, China

Received Date: 30 August 2023

Revised Date: 30 September 2023

Abstract

Abstract

The Late Devonian strata at Fecht area in the eastern Anti-Atlas, Morocco, North Africa, could be divided into two units: ds3 and dh. The ds3 unit is a set of gray with purple-red thick to thin layered nodular detrital limestone with a thickness of about 1.3m, where stromatolites are observed, rich in crinoid stems and cephalopods, and locally associated with brachiopods and trilobites. The lower part of the dh unit is an interbedded layer of gray thin layer of argillaceous siltstone and silty shale, mixed with muddy limestone lenses; the upper part is a gray-green medium layer of fine sandstone, with ripple structures and abundant trace fossils and bivalves. The conodont biostratigraphy indicates that both units should be located in the Early Palmatolepis marginifera zone of the Famennian. This article reports on the stromatolites of the Late Devonian Famennian in Morocco for the first time, indicating that after the Frasnian-Famennian mass extinction, microorganisms flourished first and then followed by the recovery of skeletal organisms.
- stromatolite /
- conodont /
- Famennian /
- Late Devonian /
- eastern Anti-Atlas /
- Morocco, North Africa

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References

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